High-permittivity pads can be used to improve B1+ homogeneity and intensity in neuroimaging and body applications. Normally, finding the “optimal” pad for a specific region of interest involves evaluating many different pad designs using electromagnetic simulations, which is a very time-consuming approach taking hours to days of computation time. We propose a nonlinear optimization method based on model order reduction that allows us to design high-permittivity pads in less than 30 seconds.
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